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40篇 您的检索式:作者名="Yusef"
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1整合分析中国农田腐秆剂施用对秸秆腐解和作物产量的影响显示文摘【目的】农田中施用腐秆剂能否有效地促进秸秆腐解和养分释放,进而提高作物产量一直存在争议。在全国尺度上,整合分析腐秆剂田间施用的秸秆促腐和作物增产效果,探明不同气候和土壤状况、秸秆特征以及还田条件下腐秆剂施用对还田秸秆降解和作物产量的影响,为科学合理地使用腐秆剂提供指导。【方法】本研究利用整合分析的方法(meta-analysis),系统分析了2001—2019年公开发表的腐秆剂田间应用相关研究论文(共89篇,含腐秆剂促腐秸秆数据63条、腐秆剂提高作物产量数据207条),探讨了气候类型、还田条件、秸秆种类、还田初始碳氮比(C/N)、土壤pH和土壤有机质(SOM)含量等6方面因素对腐秆剂促腐和增产作用的影响。【结果】研究发现,与不施腐秆剂相比,施用腐秆剂总体上可有效促进还田秸秆的降解,但在温带大陆性气候地区,秸秆还田初始C/N≤15以及土壤为中性时,腐秆剂的促腐效应却不显著,效应值的范围分别为-0.010—0.716、-0.302—0.568和-1.01—0.475;还田条件、秸秆种类和SOM含量会显著影响腐秆剂的促腐作用强度。类似地,腐秆剂的田间施用对作物产量的作用总体也表现为显著提升,但在土壤为中性时腐秆剂的增产作用并不稳定,其效应值范围为-0.284—0.751;除了还田环境、SOM含量外,其余4方面因素均会显著改变腐秆剂的增产幅度。此外,线性拟合结果显示秸秆促腐率与作物增产率之间呈现显著正相关关系(R2=0.307,P<0.0001)。【结论】施用腐秆剂可有效促进秸秆腐解和增加作物产量,且在温带季风性气候条件下,将玉米秸秆于旱地条件下还田,在还田初始C/N大于30以及土壤呈酸或碱性时配施腐秆剂效果最佳。杨欣润 许邶 何治逢 吴婧 庄睿花 马超 柴如山 Yusef Kianpoor Kalkhajeh 叶新新 朱林 2020中国农业科学2020,53,7:13
2慢性阻塞性肺疾病动物模型研究进展显示文摘慢性阻塞性肺疾病(COPD)已成为人类健康第三大杀手,迫切需要深入研究揭示其病理分子机制及防治药物。一般COPD分为稳定期及急性加重期COPD(AECOPD),目前在该领域尚未有统一的COPD、AECOPD动物模型造模方法。通过查阅近年来各类与COPD、AECOPD动物模型相关的文献,从单因素诱导方法和复合因素诱导方法两个方面综述几种比较常用的COPD、AECOPD动物模型造模方法,并简述其造模机制、方法及一些优缺点,为COPD动物模型建立和完善提供参考。曾德优 张六一 肖创 王略力 黄蓉 方雁 杜晓华 陈晨 杨为民 2022陕西医学杂志2022,51,4:4
3Phosphorus accumulation and leaching risk of greenhouse vegetable soils in Southeast China显示文摘Over-fertilization has caused significant phosphorus(P)accumulation in Chinese greenhouse vegetable production(GVP)soils.This study,for the first time,quantified profile P accumulation directly from soil P measurements,as well as subsoil P immobilization,in three alkaline coarse-textured GVP soil profiles with 5(S5),15(S15),and 30(S30)years of cultivation in Tongshan,Southeast China.For each profile,soil samples were collected at depths of 0-10(topsoil),10-20,20-40,40-60,60-80,and 80-100 cm.Phosphorus accumulation was estimated from the difference in P contents between topsoil and parent material(60-100 cm subsoil).Phosphorus mobility was assessed from measurements of water-soluble P concentration(P_(Sol)).Finally,P sorption isotherms were produced using a batch sorption experiment and fitted using a modified Langmuir model.High total P contents of 1980(S5),3190(S15),and 2330(S30)mg kg^(-1) were measured in the topsoils versus lower total P content of approximately 600 mg kg^(-1) in the 80-100 cm subsoils.Likewise,topsoil PSol values were very high,varying from 6.4 to 17.0 mg L^(-1).The estimated annual P accumulations in the topsoils were 397(S5),212(S15),and 78(S30)kg ha^(-1) year^(-1).Sorption isotherms demonstrated the dominance of P desorption in highly P-saturated topsoils,whereas the amount of adsorbed P increased in the 80-100 cm subsoils with slightly larger P adsorption capacity.The total P adsorption capacity of the 80-100 cm subsoils at a solution P concentration of0.5 mg L^(-1) was 15.7(S5),8.7(S15),and 6.5(S30)kg ha^(-1),demonstrating that subsoils were unable to secure P concentrations in leaching water below 0.5 mg L^(-1) because of their insufficient P-binding capacity.Yusef KIANPOOR KALKHAJEH Biao HUANG Helle SORENSEN Peter EHOLM Hans Christian BHANSEN 2021Pedosphere2021,31,5:4
4Stereotactic radiotherapy for prostate cancer:A review and future directions显示文摘Prostate cancer affects over 200000 men annually in the United States alone.The role of conventionally fractionated external beam radiation therapy (RT) is well established as a treatment option for eligible prostate cancer patients; however,the use of stereotactic body radiotherapy (SBRT) in this setting is less well defined.Within the past decade,there have been a number of studies investigating the feasibility of SBRT as a potential treatment option for prostate cancer patients.SBRT has been well studied in other disease sites,and the shortened treatment course would allow for greater convenience for patients.There may also be implications for toxicity as well as disease control.In this review we present a number of prospective and retrospective trials of SBRT in the treatment of prostate cancer.We focus on factors such as biochemical progression-free survival,prostate specific antigen (PSA) response,and toxicity in order to compare SBRT to established treatment modalities.We also discuss future steps that the clinical community can take to further explore this new treatment approach.We conclude that initial studies examining the use of SBRT in the treatment of prostate cancer have demonstrated impressive rates of biochemical recurrencefree survival and PSA response,while maintaining a relatively favorable acute toxicity profile,though long-term follow-up is needed.Yusef A Syed Ami K Patel-Yadav Charlotte Rivers Anurag K Singh 2017World Journal of Clinical Oncology2017,8,5:1
5Diversity andcold-active hydrolytic enzymes of culturable bacteria associatedwith Arctic sea ice,Spitzbergen显示文摘Groudieva T Kambourova M Yusef H 2004Extremophiles2004,8,6:1
6Optimization of Biotreatment of Paper Industrial Effluent with Phanerochaete chrysosporium 显示文摘Yusef H H Ghanem K M El- Kassus H Y 1999Fresenius Envir Bull1999,8,:1
7Thyroid low grade B-cell lymphoma (MALT type) with extreme plasmacytic differentiation:report of a case diagnosed by fine needle aspiration and flow cytometric study显示文摘Yusef M Rajan C Mohammed Y 2004Diagnostic Cytopathology2004,31,:1
8Vehicle Stability Improvement Using Fuzzy Control and Neural- network Slip Angle Observer显示文摘Yusef B Mohammad D 2003SAE Paper2003,,1:1
9Diversity and cold-active hydrolytic enzymes of culturable bacteria associated with Arctic sea ice, Spitzbergen显示文摘Groudieva T Kambourova M Yusef H 2004Extremophiles2004,8,6:1
10Changes in hypertension treatment and in congestive heart failure mortality in the United States 显示文摘Yusef S RD 1989Hypertension1989,13,:1
11Diversity and cold-active hydrolytic enzymes of culturable bacteria associated with Arctic sea ice, Spitzbergen显示文摘Tatiana Groudieva Margarita Kambourova Hoda Yusef Maryna Royter Ralf Grote Hauke Trinks Garabed Antranikian 2004Extremophiles2004,,6:1
12Production of Aspergillus terreus xylanase in solid-state cultures:application of the PlackettBurman experimental design to evaluate nutritional requirements显示文摘NB Ghanem HH Yusef HK Mahrouse 2000Bioresource Technology2000,73,2:1
13Diversity and cold-ac- tive hydrolytic enzymes of culturable bacteria associated with Arc- tic sea ice, Spitzbergen显示文摘Groudieva T Kambourova M Yusef H 2004Extremophiles2004,8,6:1
14Production of Aspergillus terreus xylanase in solid-state cultures:application of the Plackett-Burman experimental design to evaluate nutritional requirements显示文摘Ghanen NB Yusef HH Mahrouse HK 2000Bioresour Technol2000,73,:1
15Diversity and cold-active hydrolytic enzymes of culturable bacteria associated with Arctic sea ice, Spitzbergen显示文摘Tatiana Groudieva Margarita Kambourova Hoda Yusef Maryna Royter Ralf Grote Hauke Trinks Garabed Antranikian 2004Extremophiles2004,,6:1
16Functional evaluation of human CIC - 2 chloride channel mutations associated with idiopathic generalized epilepsies显示文摘Niemcyer MI Yusef YR Comejo I 2004Physiol Genomics2004,19,1:1
17Slow Coherency Based Network Partitioning Including Load Buses显示文摘Yusef S B Rogers G J Alden R T H 1993IEEE Trans on Power systems1993,8,3:1
18Production of Aspergillus terreus xylanase in solid-state cultures: application of the Plackett- Burman experimental design to evaluate nutritional requirement 显示文摘Ghanem NB Yusef HH Mahrouse HK 2000Biore Technol2000,73,:1
19Late intervention after anterior myocardial infarction: effects on left ventricular size, function, quality of life, and exercise tolerance: results of the Open Artery Trial ( TOAT study ) 显示文摘Yusef ZR Redwood SR Bucknall CA 2002J Am Coil Cardiol2002,40,:1
20Knowledge production and higher education transformation in South Africa: Towards reflexivity in university teaching, research and community service 显示文摘YUSEF WAGHID 2002Higher Education2002,,43:1
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